I was just reading the article Guns and Guts: Tank Destroyers in Combat by Mike Haught on the FoW site and thought it was a great article. I wholeheartedly agree with him that it has been a neglected subject.

I also note that while there are dozens of Russian and German TD briefings for battalions that allow fielding company formations, there is not one for the Americans in FoW.

It could cover MW and LW and include towed and self-propelled units as well as the various attachments. I would think it would allow up to a company of U.S. TDs to be attached to any other U.S. company, as well as having stand-alone company formations with attachments, as happened historically.